we're at twin brook parkway and rockville pike. we have one gas station here. we have the no gas, out of service on the pump. across the street, people are still waiting in line. these images are what people will remember from today. >> no one said ladies and gentlemen, start your everythingens. but they should have. these people waited three hours to fill up their cars at a shell station on rockville pike. much of it was spent waiting for a tanker truck after the station's trucks ran dry from the demand. >> we're behind the yellow line here, it's a club for us now. it's gone beyond just getting gas. actually, it's been this way all day. lines, lines, lines. >> reporter: amazingly, they bonded. >> it was good, everybody had great spirits here, it was good energy. ironically i met somebody i would have never met and we know all the same people. it was great. >> reporter: it's not clear what caused the demand pattern that was clearly different from previous weather disasters. many people grew frustrated. >> i've been driving around, trying to find a gas station,